Railway-truck side frame



J. A. LAMONT.

RAILWAY TRUCK SIDE FRAME.

APPLICATION FILED AUG.4. 1919- 0 a 2. 0 m M m ,M a 3 2 mm n. .mzmw w M n Q m RN O UNITED STATES PATENT OFFICE.

JOHN A. LAMONT, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN STEEL FOUNDRIES, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

RAILWAY-TRUCK SIDE FRAME.

Patented Oct. 12, 1920.

Application filed August 4, 1919. Serial No. 315,125.

To all whom it may concern:

Be it known that 1, JOHN A. LAMONT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in" Railway Truck Side F mines, of which the following is a specification.

This invention relates to railway truck- Another object is toprovide a side frame construction, including the journal box and associated parts, adapted to meet the vanous requirements for successful commercial operation.

. frame;

The invention is illustrated on the accompanying sheets of drawings, in which- Figure 1 is a side elevation of a railway truck side frame embodying my invention;

Fig. 2 is a top plan view of the same; Fig. 3 is a bottom plan view of said side Fig. 4 is an end elevation; and I Fig. 5 is a transverse sectional viewtaken on the line 5-5 of Fig. 1 through the frame at the journal box.

The various novel features of my invention will be apparent from the following de scription and drawings and will be particularly pointed out in the appended claims.

Referring to the figures of the drawings, it will be noted that I have provided a truck side frame 10 of a truss type, including a tension member 11 and compression member 12, which are joined together at their ends or points of support;

Each end of this frame 10 is provided with. a transversely extending opening 13, preferably circular in section, said openings 13 each being for the reception of a journal box. A shownis made of sheet metal insteadof malleable iron or cast steel, which has been the practice heretofore. Furthermore, this journal box preferably is cylindrical in form and occupies the circular opening 13 The journal box 14 here as distinguished from the old type of verti cal opening in which the journal box is vertically slidably mounted.

The journal receiving portion 13 has an opening 15 which is large enough to permit the passage of the axle journal 16, but which is too small to permit the passage of the journal box 14. Accordingly, the journal box is applied to its receiving portion and removed therefrom by a lateral movement with respect to the side frame in a manner to be referred .to hereinafter.

The journal box is providedwith a jour-- nal brass 17, which is of the'standard desi Mounted over this brass is a wedge 18, which differs from the standard wedge in thatits upper surface is curved to conform to the inside radius of the box 14, said wedge also having aflug 19 which-extends vertically through an opening 20 in the top of the box 14 and occupies a corresponding pocket 21in-the side frame to prevent relative rotative movement of said side frame and journal box and also relative transverse movement.

The box is provided witha longitudinally extending rib 22 which occupies a correspondingly transversely arranged -groove 23 in the side frame, and is also provided with a circular rib 24 which is located adjacent the side frame at the outer side thereof. These ribs primarily are strengthening ribs; but also are arranged to improve the'fitting of the box in the frame.

As is appreciated, the journal box 14 serves primarily as a container for oil and waste, as a dust protector for the journal, and may be made of relatively light material, in view of the fact that it is subjected to practically no stresses. That portion of the side frame surrounding thebox is in dependent of all stresses originating in other pargs of the frame proper'due to a vertical The inner end of the box is provided with a dust-proof arrangement, including a dustguard 25, which preferably has an annular portion closely fitting the axle 26, a vertical flange of said guard'fitting closely to the external edge of the inside end of the journal box. A dustguard cover 27 is mounted over the dust-guard and fits over the inner end of the journal box 14 in a cap-like manner. In order to provide clearance at the top to allow for brass and journal wear and also for jacking up the truck when the brasses are removed, it is essential that portions 28 of the cover 27 immediately surrounding the dust'guard should extend beyond the outside of the box. Accordingly, the dust-guard cover 27 must be removed before the journal box 14 is drawn laterally out of the journal box receiving portion and away from the side frame. The journal box is provided with a spring-pressed hinged door 29 for the usual purposes.

To remove the journal box, the axles and the wheels, the side frame is jacked up sufficiently to free the journal brass 17 and wedge 18. The dust guard cover is then pushed off of the journal box and the latter is drawn outwardly and laterally with respect to the side frame until the box is free from said side frame. This box is applied to and removed from the side frame with little effort, in view of the fact that the box may be a sixteenth of an inch less in outside vdiameter than the inside diameter of its frame opening. It will be understood that this clearance will all be under the bottom of the box when the wedge and brass are in place, and the weight of the frame bears on the journal. After the journal box 14 is removed, the side frame is then jacked up an additional amount to permit the passage of the journal outwardly through the opening 15. In assembling the parts the reverse operation is followed.

If desired, the journal box may be modified in form to take a standard wedge, in

which case any suitable means of-at'taching the box to the frame may be used. I

It is my intention to cover all .modificato and withdrawn from the side frame by a lateral movement with respect thereto, and a wedge forming a locking connection between the side frame and journal box.

2. A truck side frame having an open circular receiving portion for a journal box,

the opening of said receiving portion being large enough to permit the passage of a journalbut too small to permitthe'passage v of July, 1919.

of a journal box, and a cylindrical journal box applied to and withdrawn from said the opening of said receiving portion being large enough to permit the passage of a journal but too small to permit the passage of a journal box, a cylindrical journal box applied to and withdrawn from said side frame by a lateral movement with respect thereto, and means for preventing relative rotation of said journal box and side frame.

4. In combination, a truck side frame having a circular opening for the reception of a journal box, a cylindrical journal box mounted in said side frame opening, and means for preventing relative rotation of said journal box and side frame.

5. In combination, a truck side frame having an opening for the reception of a journal box, a journal box applied to the opening of said side frame by a lateral movement, and means within the box having a portion extending outwardly therefrom 'into engagement with the frame for retaining said journal box in position. I

6. In combination, a truck side frame having-a circular opening for the reception of a journal box, a cylindrical journal box mounted in said frame opening, a journal brass and wedge mounted in said box, said wedge acting to prevent relative movement of said journal box and frame.

7. In combination, a truck side frame having a circular opening for the reception of a journal box, a cylindrical journal box mounted in said side frame opening, said box having an aperture therein, and a wedge mounted in said box having a portion extending through said box aperture and engaging a portion of the frame normally to preventrelative movement of said side frame.

8. In combination, a truck side frame having an opening for the reception of a journal box, a journal box mounted .in said opening, 'a. journalbrass and wedge mounted in said journal box and box, said wedge acting to prevent relative movement of said journal box and frame.

9. In combination, a truck side frame, a journal box mounted therein, and a bearing wedge forming an interlock between said truck side frame and journal box.

Signed at Chicago, Illinois, this 30th day JOHN A. LAMONT. 

